pile of fossil marine species laid out on a table.

animal backgrounds bay biology black brittle brown cambrian change clam climate collection coral dig digging dinosaur earth educational era erie extinct extinction fossil fossilized fossils fuels global grey gulf history inground jagged laid laidout lake mass mollusk objects ocean oil organic paleology paleontologist paleontology pattern pecies pile preglacial prehistoric prehistory rare record reef rock rocks rough round rubble ruin salt scallop science shallow shells snail soil species swirl table texture treasure upclose water wildlife world zoology